@@ -2,7 +2,182 @@
/* Copyright (C) 2024-2025 Linaro Ltd. */
#include <command.h>
+#include <console.h>
+#include <dm/device.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <lwip/icmp.h>
+#include <lwip/inet_chksum.h>
+#include <lwip/raw.h>
+#include <lwip/timeouts.h>
#include <net.h>
+#include <time.h>
U_BOOT_CMD(ping, 2, 1, do_ping, "send ICMP ECHO_REQUEST to network host",
"pingAddress");
+
+#define PING_DELAY_MS 1000
+#define PING_COUNT 5
+/* Ping identifier - must fit on a u16_t */
+#define PING_ID 0xAFAF
+
+struct ping_ctx {
+ ip_addr_t target;
+ struct raw_pcb *pcb;
+ struct icmp_echo_hdr *iecho;
+ u16 seq_num;
+ bool alive;
+};
+
+static u8_t ping_recv(void *arg, struct raw_pcb *pcb, struct pbuf *p,
+ const ip_addr_t *addr)
+{
+ struct ping_ctx *ctx = arg;
+ struct icmp_echo_hdr *iecho = ctx->iecho;
+
+ if (addr->addr != ctx->target.addr)
+ return 0;
+
+ if ((p->tot_len >= (IP_HLEN + sizeof(struct icmp_echo_hdr))) &&
+ pbuf_remove_header(p, IP_HLEN) == 0) {
+ iecho = (struct icmp_echo_hdr *)p->payload;
+
+ if (iecho->id == PING_ID &&
+ iecho->seqno == lwip_htons(ctx->seq_num)) {
+ ctx->alive = true;
+ printf("host %s is alive\n", ipaddr_ntoa(addr));
+ pbuf_free(p);
+ return 1; /* eat the packet */
+ }
+ /* not eaten, restore original packet */
+ pbuf_add_header(p, IP_HLEN);
+ }
+
+ return 0; /* don't eat the packet */
+}
+
+static int ping_raw_init(struct ping_ctx *ctx)
+{
+ ctx->pcb = raw_new(IP_PROTO_ICMP);
+ if (!ctx->pcb)
+ return -ENOMEM;
+
+ raw_recv(ctx->pcb, ping_recv, ctx);
+ raw_bind(ctx->pcb, IP_ADDR_ANY);
+
+ return 0;
+}
+
+static void ping_raw_stop(struct ping_ctx *ctx)
+{
+ if (ctx->pcb)
+ raw_remove(ctx->pcb);
+}
+
+static void ping_prepare_echo(struct ping_ctx *ctx)
+{
+ struct icmp_echo_hdr *iecho = ctx->iecho;
+
+ ICMPH_TYPE_SET(iecho, ICMP_ECHO);
+ ICMPH_CODE_SET(iecho, 0);
+ iecho->chksum = 0;
+ iecho->id = PING_ID;
+ iecho->seqno = lwip_htons(ctx->seq_num);
+
+ iecho->chksum = inet_chksum(iecho, sizeof(*iecho));
+}
+
+static void ping_send_icmp(struct ping_ctx *ctx)
+{
+ struct pbuf *p;
+ size_t ping_size = sizeof(struct icmp_echo_hdr);
+
+ p = pbuf_alloc(PBUF_IP, (u16_t)ping_size, PBUF_RAM);
+ if (!p)
+ return;
+
+ if (p->len == p->tot_len && !p->next) {
+ ctx->iecho = (struct icmp_echo_hdr *)p->payload;
+ ping_prepare_echo(ctx);
+ raw_sendto(ctx->pcb, p, &ctx->target);
+ }
+
+ pbuf_free(p);
+}
+
+static void ping_send(void *arg)
+{
+ struct ping_ctx *ctx = arg;
+
+ ctx->seq_num++;
+ if (ctx->seq_num <= PING_COUNT) {
+ ping_send_icmp(ctx);
+ sys_timeout(PING_DELAY_MS, ping_send, ctx);
+ }
+}
+
+static int ping_loop(struct udevice *udev, const ip_addr_t *addr)
+{
+ struct ping_ctx ctx = {};
+ struct netif *netif;
+ int ret;
+
+ netif = net_lwip_new_netif(udev);
+ if (!netif)
+ return -ENODEV;
+
+ printf("Using %s device\n", udev->name);
+
+ ret = ping_raw_init(&ctx);
+ if (ret < 0) {
+ net_lwip_remove_netif(netif);
+ return ret;
+ }
+
+ ctx.target = *addr;
+
+ ping_send(&ctx);
+
+ do {
+ sys_check_timeouts();
+ net_lwip_rx(udev, netif);
+ if (ctx.alive)
+ break;
+ if (ctrlc()) {
+ printf("\nAbort\n");
+ break;
+ }
+ } while (ctx.seq_num <= PING_COUNT);
+
+ sys_untimeout(ping_send, &ctx);
+ ping_raw_stop(&ctx);
+
+ net_lwip_remove_netif(netif);
+
+ if (ctx.alive)
+ return 0;
+
+ printf("ping failed; host %s is not alive\n", ipaddr_ntoa(addr));
+ return -1;
+}
+
+int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+ ip_addr_t addr;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ if (!ipaddr_aton(argv[1], &addr))
+ return CMD_RET_USAGE;
+
+restart:
+ if (net_lwip_eth_start() < 0 || ping_loop(eth_get_dev(), &addr) < 0) {
+ if (net_start_again() == 0)
+ goto restart;
+ else
+ return CMD_RET_FAILURE;
+ }
+
+ return CMD_RET_SUCCESS;
+}
@@ -2,7 +2,6 @@ ccflags-y += -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot
obj-$(CONFIG_$(PHASE_)DM_ETH) += net-lwip.o
obj-$(CONFIG_CMD_DHCP) += dhcp.o
-obj-$(CONFIG_CMD_PING) += ping.o
obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o
obj-$(CONFIG_WGET) += wget.o
deleted file mode 100644
@@ -1,180 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/* Copyright (C) 2024 Linaro Ltd. */
-
-#include <command.h>
-#include <console.h>
-#include <dm/device.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <lwip/icmp.h>
-#include <lwip/inet_chksum.h>
-#include <lwip/raw.h>
-#include <lwip/timeouts.h>
-#include <net.h>
-#include <time.h>
-
-#define PING_DELAY_MS 1000
-#define PING_COUNT 5
-/* Ping identifier - must fit on a u16_t */
-#define PING_ID 0xAFAF
-
-struct ping_ctx {
- ip_addr_t target;
- struct raw_pcb *pcb;
- struct icmp_echo_hdr *iecho;
- uint16_t seq_num;
- bool alive;
-};
-
-static u8_t ping_recv(void *arg, struct raw_pcb *pcb, struct pbuf *p,
- const ip_addr_t *addr)
-{
- struct ping_ctx *ctx = arg;
- struct icmp_echo_hdr *iecho = ctx->iecho;
-
- if (addr->addr != ctx->target.addr)
- return 0;
-
- if ((p->tot_len >= (IP_HLEN + sizeof(struct icmp_echo_hdr))) &&
- pbuf_remove_header(p, IP_HLEN) == 0) {
- iecho = (struct icmp_echo_hdr *)p->payload;
-
- if (iecho->id == PING_ID &&
- iecho->seqno == lwip_htons(ctx->seq_num)) {
- ctx->alive = true;
- printf("host %s is alive\n", ipaddr_ntoa(addr));
- pbuf_free(p);
- return 1; /* eat the packet */
- }
- /* not eaten, restore original packet */
- pbuf_add_header(p, IP_HLEN);
- }
-
- return 0; /* don't eat the packet */
-}
-
-static int ping_raw_init(struct ping_ctx *ctx)
-{
- ctx->pcb = raw_new(IP_PROTO_ICMP);
- if (!ctx->pcb)
- return -ENOMEM;
-
- raw_recv(ctx->pcb, ping_recv, ctx);
- raw_bind(ctx->pcb, IP_ADDR_ANY);
-
- return 0;
-}
-
-static void ping_raw_stop(struct ping_ctx *ctx)
-{
- if (ctx->pcb)
- raw_remove(ctx->pcb);
-}
-
-static void ping_prepare_echo(struct ping_ctx *ctx)
-{
- struct icmp_echo_hdr *iecho = ctx->iecho;
-
- ICMPH_TYPE_SET(iecho, ICMP_ECHO);
- ICMPH_CODE_SET(iecho, 0);
- iecho->chksum = 0;
- iecho->id = PING_ID;
- iecho->seqno = lwip_htons(ctx->seq_num);
-
- iecho->chksum = inet_chksum(iecho, sizeof(*iecho));
-}
-
-static void ping_send_icmp(struct ping_ctx *ctx)
-{
- struct pbuf *p;
- size_t ping_size = sizeof(struct icmp_echo_hdr);
-
- p = pbuf_alloc(PBUF_IP, (u16_t)ping_size, PBUF_RAM);
- if (!p)
- return;
-
- if (p->len == p->tot_len && !p->next) {
- ctx->iecho = (struct icmp_echo_hdr *)p->payload;
- ping_prepare_echo(ctx);
- raw_sendto(ctx->pcb, p, &ctx->target);
- }
-
- pbuf_free(p);
-}
-
-static void ping_send(void *arg)
-{
- struct ping_ctx *ctx = arg;
-
- ctx->seq_num++;
- if (ctx->seq_num <= PING_COUNT) {
- ping_send_icmp(ctx);
- sys_timeout(PING_DELAY_MS, ping_send, ctx);
- }
-}
-
-static int ping_loop(struct udevice *udev, const ip_addr_t *addr)
-{
- struct ping_ctx ctx = {};
- struct netif *netif;
- int ret;
-
- netif = net_lwip_new_netif(udev);
- if (!netif)
- return -ENODEV;
-
- printf("Using %s device\n", udev->name);
-
- ret = ping_raw_init(&ctx);
- if (ret < 0) {
- net_lwip_remove_netif(netif);
- return ret;
- }
-
- ctx.target = *addr;
-
- ping_send(&ctx);
-
- do {
- sys_check_timeouts();
- net_lwip_rx(udev, netif);
- if (ctx.alive)
- break;
- if (ctrlc()) {
- printf("\nAbort\n");
- break;
- }
- } while (ctx.seq_num <= PING_COUNT);
-
- sys_untimeout(ping_send, &ctx);
- ping_raw_stop(&ctx);
-
- net_lwip_remove_netif(netif);
-
- if (ctx.alive)
- return 0;
-
- printf("ping failed; host %s is not alive\n", ipaddr_ntoa(addr));
- return -1;
-}
-
-int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
- ip_addr_t addr;
-
- if (argc < 2)
- return CMD_RET_USAGE;
-
- if (!ipaddr_aton(argv[1], &addr))
- return CMD_RET_USAGE;
-
-restart:
- if (net_lwip_eth_start() < 0 || ping_loop(eth_get_dev(), &addr) < 0) {
- if (net_start_again() == 0)
- goto restart;
- else
- return CMD_RET_FAILURE;
- }
-
- return CMD_RET_SUCCESS;
-}
Move the implementation of the ping command under cmd/. Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> --- Changes in v2: - New patch cmd/lwip/ping.c | 175 ++++++++++++++++++++++++++++++++++++++++++++ net/lwip/Makefile | 1 - net/lwip/ping.c | 180 ---------------------------------------------- 3 files changed, 175 insertions(+), 181 deletions(-) delete mode 100644 net/lwip/ping.c